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D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
D01C3/00—Treatment of animal material, e.g. chemical scouring of wool
D01C3/02—De-gumming silk
FR971378D1940-04-231940-04-23
Process for processing raw silk
ExpiredFR971378A
(en)